-What has made him in such a low mood recently?—_________ by his father for not passing the exam.
—Come on, please give me some ideas about the project.—Sorry. With so much work my mind, I almost break down.
If you put on more coal,the fire will ________.
I recently paid _____ visit to my aunt, and her grandson kept _____ making fun of me.
—I’m sorry to have kept you waiting.—____, Bill.
Ten years ago, the population of our village was ______ that of theirs.